--- dvbscan.c.org	2010-12-11 11:00:22.000000000 +0100
+++ dvbscan.c	2010-12-11 11:00:05.000000000 +0100
@@ -225,6 +225,7 @@
 			output_filename = argv[argpos+2];
 			if (!strcmp(output_filename, "-"))
 				output_filename = NULL;
+			argpos+=3;
 		} else {
 			if ((argc - argpos) != 1)
 				usage();